Review: Remove Lens code (finally)

[David Hill]

Here is the change to remove the Lens code.

caviots:
    There were some minor gradle fixes required to cross build.

    I removed all of the arm*gradle files except for armv6hf. Arm is not a supported platform anymore and by reducing to the most likely to be used (because of the Pi), I can concentrate what few resources I can to checking that platform still builds.

    Armv6hf builds cleanly. I don't have a working Pi configuration to test it, and need to figure out building the JDK for ARM before I really can test it even then.

     We have not been using Lens for JDK 8,9 so this should be safe.

https://bugs.openjdk.java.net/browse/JDK-8090969
webrev: http://cr.openjdk.java.net/~ddhill/8090969

-- 
David Hill<David.Hill at Oracle.com>
Java Embedded Development

"A man's feet should be planted in his country, but his eyes should survey the world."
-- George Santayana (1863 - 1952)